Free puzzle · ages 6+
Triangle Puzzle
Fill the wooden triangle with every piece. Turn them, and at the harder levels flip them, until none is left over.
- 6+ages
- 5levels
- 47,000challenges
How to play
- Drag the pieces into the big triangle.
- Tap to turn a piece by a sixth of a turn; double-tap to flip it.
- Fill the triangle with every piece.
What your child learns
Pieces built from small triangles teach children to see shapes inside shapes.
- Spatial reasoning Picture a piece turned or flipped before you move it.
- Shapes and geometry See how small shapes build a triangle.
- Persistence Try, check and change your mind.
Pick a level
Start easy, or jump straight to a challenge.
Ready to try Triangle Tray?
Free in the browser on phones, tablets and computers. No sign-up, no ads.
Questions parents ask
Is Triangle Tray free?
The first 3 Beginner challenges of Triangle Tray are free in the browser, with no sign-up and no ads. Family Pro unlocks every challenge at all five levels, the hint coach, solutions and saved progress. During early access, every level is open to try.
What age is Triangle Tray for?
Triangle Tray is recommended for ages 6+. Start on Beginner and move up a level whenever it feels easy.
What does Triangle Tray teach?
Spatial reasoning: Picture a piece turned or flipped before you move it. Shapes and geometry: See how small shapes build a triangle. Persistence: Try, check and change your mind.
Does it work on phones and tablets?
Yes. It plays in any modern browser on phones, tablets and computers, with touch or a mouse.
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